Question

Z score for worlds tallest man- Bao Xishun is the worlds tallest man with a height of 92.95 inch(or 7ft,8.95 inch).men have heights with a mean of 69.6 in. And a standard deviation of 2.8 in.
1. Convert Boa's height to a z score? 2. Does Boa's height meet the criterion of being unusual by corresponding to a z score that does not fall between -2 and 2? 9an someone please help!!!!

Answer 1

Convert Bao’s height to a z-score. Z=(92.95-69.6)/2.8= 8.34
Yes; Baos height is unusual and does not fall between the -2 and 2.

Answer 2

8.23